Basic Information On Troubleshooting; Led Indicators - Epson EMP-822 Service Manual

3.2 Basic Information on Troubleshooting

This section describes basic information needed when executing the troubleshooting.

3.2.1 LED Indicators

The control panel has three LEDs that indicate the operating status of the projector.
The following tables show what the indicators mean and how to remedy any problem
indicated.
Power indicator lights red: Abnormal
Indicator Status
SEIKO EPSON
EMP-822/EMP-83/EMP-X5/EMP-S5
Figure 3-1 LED Indicators
Table 3-2. LED Indicator Status (Error)
Projector
Status
[Status]
Abnormality is detected from any of the following elements on the MA
board.
• ROM Error
• RAM Error
• I2C Error
• DR Status Error
Internal Error
[Remedy]
Disconnect the AC cable once, and reconnect it, then turn the power on.
If the same error occurs, replace the Optical Engine and MAB set
because the MA board is broken. (refer to
Engine and MAB set(1) (MA Board Assy.) /IF Case" (p. 26)
"Removing the Optical Engine and MAB set (2) (Optical Engine)" (p.
39))
Problem and Remedy
3-3
Power indicator
Lamp indicator
Temp indicator
ON Blink
4.4.2 "Removing the Optical
/ 4.4.5
Revision:A
OFF